Automatic gate



i (No Model.) 2 Sheets-Sheet 1. T. E. WILSON.

AUTOMATIC GATE.

N0. 339,249. Patented Apr. 6, 1886.

a, 6 WM INVE/VTUI? W/T/VESSES 2 Sheets-Sheet 2.

T. E. WILSON.

AUTOMATIC GATE.

(No Model.)

Patented Apr. 6,

WITNESSES l/VVE/VTOR M M N. rnsns, Pholollthugrapher, wmin vm n c.

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THOMAS E. TVILSOX, OF FARMLAND, INDIANA.

AUTOMATIC GATE.

EJPELIFICATIOIQ' forming part of Lettem Patent No. 339.249, dated April 6, 1886.

Application tiled December 13, 1884.

To all whom, it may concern:

Be it known that l, THOMAS E. WILsON, a citizen of the United States, residing at Farmland, in the county of Randolph and State of Indiana, have invented a new and useful Improvement in Automatic Gates, of which the following is adescription, reference being bad to the accompanying drawings, which form a part of this specification.

My invention relates to improvements in self-opening or automatic gates, and the objects of my invention are to facilitate the operation of automat c. gates and to construct a gate that will b durable and inexpensive. I attain these objects by the mechanism illustrated by the accompanying drawings, in which- Figure l is a perspective view. Figs. 2, 3, 4. and 5 are detail views of the upper hinge mechanism. Fig. 6 is a view 01" the lower hingebracket. Fig. 7 is a view taken on a line with the gate and fence, showing the position of the trip-rods on each side of the gate when it is closed. Fig. 8 isa view taken from the same point when the gate is open. Fig. 9 is a View of the trip-rod and t'rame, and Fig. 1.0is a perspective, on an enlarged scale, of the upper hinge with its covering.

Similar letters refer to similar partsthroughout the several views.

The gatei'raine F F is made in any style desired, and hinged to post B and closed against post A. The rear bar, F, is provided at the bottom with a stud. which rests on the lower hinge-bracket, a. The said bracket a is secured to the post B by screws or bolts, and the lower part turned outward and provided with ears a, all as shown in Fig. 6. Adjustingscrew a pass through the said ears against a nut, a, on three sides, and a block of wood or rubber, a", is placed back of it, so that it can be moved in any direction to plumb the gate, and held firmly in place by tightening said screws against it. The stud at the bottom of the rear bar, F, passes through the hole a, and rests on the outward-turned part of the hinge-bracket. The upper end of the bar F is also provided with a stud or pin, 1)", projecting up through the hinge mechanism. The upper hinge-bracket, b, is made in a shape best shownin Fig. 4, the round part of which passes through the post B and is held firmly by a nut, b as shown in Figs. 2 and 3.

Serial No. 150,6!!2. (X0 model.)

The gate is first set on the lower bracket, a. and the top bracket, Z). is then placed over the top of bar F. the pin I)" projecting up through the slot bi allowing the bracket b to rest on top of said bar. It is then secured to the post by the nut b so that the gate cannot be raised up. A small iron wheel is placed over said pin b and made to work in the recess within said bracket, as shown in Figs. 2, 3, and 4. A rim. 1), is secured over said recess or to the upper side of the said bracket b by screws b, so that the said wheel cannot rise up or work out. The bracket is made so that the wheel can move from one side to the other, with a resting place or stop at each side and at the center, so that the wheel will stand in whichever place it is moved by the connecting-arms c c. \Vhcn the gate is closed.it will stand or rest at the center, as shown in Fig. 2, and when open it will stand at one side, as shown in Fig. 3.

Over the rim Z) and bracket Z) a sheet-iron cover, I), is placed to prevent ice or snow from filling up the recess in said bracket. The pin b passes up through the said cover and through the arms 0 c, all as shown in Fig. 10. The said COVOI'JIIOVQS with the pin from one side to the other; but it is larger than the bracket, therefore it covers it at all times.

Posts 0 D are placed on each side of the gate at equal distances from the post B, so that the gate will strike againstand latch to one of them each time it is opened.

The trip-rods a n are placed on each side of the gate in the frames 8 s. as shown in Fig. 1. Posts H I are also placed on each side of the gate. and held at the top by the strips E, which prevent them from spreading outward.

One end of each of the arms 0 0' is attached to the pin I), and the other end of each to the cranks d e d e. The said cranks are attached to the top of the posts II I by bolts gg, as shownin Figs. 1, 7, and S. From the pins 9 g the cranks are turned outward, and one end of rods t or 17 passes through each of them, with a nut, 0 on the said end to adjust the slack in the chains It is, secured to the lower end. The said chains are also attached to the projections m m on the triprods n n. The said trip-rods are secured in the cars t attached to the framcss s, so that they can turn down when a vehicle wheel passes over them, and one end extends down below the frame, with a weight. ac secured to the lower end, which causes the said triprod always to return to a vertical position.

011 one side of the rods n and n are placed blocks 0 0, having their upper surfaces made as double inclines Vhen a vehicle approaches the gate from either direction the wheels mount the incline and thus strike the rods less abruptly.

As thus constructed, my invention is complete and ready to operate as shown in Figs. 1 and 7.

WVhen the gate is closed,everythiug stands, as shown in Fig. 7, and the wheel I) rests in the center of the bracket. as shown in Fig. 2.

When a vehicle approaches the gate, moving in the direction indicated by the arrow in Fig. 7, the wheel first passes over the triprod a, pressing it down, as indicated by dotted lines in said figure, and pulls down the end eofcrank de, moving theupper part. (7, toward the gate and pushing on arm 0. This moves the wheel and pin to the opposite side of bracket 12, as shown in Fig. 3, which causes the gate to swing around and latch to post D, as shown in Fig. 8.

it is shown in Figs. 1, 7, and 8 that each chain k is slack (say three inches) when the gate is closed, so that either of the trip-rods moves three inches down before it pulls on or the rod 6 i,- but when one is pressed down six inches to open the gate it pulls up three inches of the other chain, which tightens it, as shown at k '5, in Fig. 8.

Wthen the vehicle passes over the other trip, it is pressed down on the block 0, as indicated by dotted lines, which only allows it to pull down threeinches of the chain. It therefore only pushes back the arm 0 far enough to move the wheel I) back to the center of the bracket, which raises the front end of the gate up out of the latch on post D, and causes it to swing back to the center or latching post, A and leaves everything as before it opened.

The trip-rod frames are set in the ground, as shown in Figs. 1 and 9, with the rod between the block 0 0 and the gate, so that the rods n n, which are always moved toward the gate to open it, can move down six inches in that direction, but onlyt-hree inches in the said figure, closes the gate and makes everything stand as before it opened. The same operation is performed by the mechanism whenet er the gate is opened, and it always opens from the team.

My invention can also be applied to a double gate by connecting the gates on each side of the roadway by underground connections, and

it can also be made to open and close by pressing the foot on atreadle when used as a yardgate.

The gate can be opened by a person on horseback when the cranks d d are extended up, as shown at d in Fig. l, for convenience in moving the arms 0 c, as heretofore (lescribed.

Having thus described my invent-ion. I clai ur/ the following and desire tosectTfl tlie same by Letters Patcnt 1. The combination, with the gate-frame provided with the hinge-pin, substantially as herein described, of the bracket 0, composed of the horizontal plate provided with cars a and the vertical fastening-plate, a bearingblock supported on said horizontal portion of the block, and adjusting-screws passing through said ears and bearing against the said block, as set forth.

2. In an automatic gate, the combination, with the gatepost and the gate provided with the pin and roller b of the upper bracket herein shown. consisting of the plate secured to the post having the double-curved slot, as shown, a flange surrounding said plate, and the rim 1), secured to said flange, all substantially as shown and described.

THOMAS E. WILSON.

\Vitnesses:

T. J. BLoUNT, CHAS. E. ADAMSON. 

